JP4028161B2 - Radiation cassette - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a radiation cassette in which a lid is detachably attached to a part of a housing for accommodating a radiation image record carrier.
[0002]
[Prior art]
For example, using a stimulable phosphor (stimulable phosphor), radiation image information of a subject such as a human body is temporarily recorded, and the radiation image information is reproduced on a photographic material such as a photographic film, or a CRT. For example, a system that outputs a visible image to the image is known.
[0003]
The stimulable phosphor accumulates a part of this radiation energy by irradiation with radiation (X-rays, α-rays, γ-rays, electron beams, ultraviolet rays, etc.), and later accumulates by irradiation with excitation light such as visible light. It refers to a phosphor that exhibits stimulated emission according to energy. This stimulable phosphor is usually formed in a sheet shape and used as a stimulable phosphor sheet.
[0004]
On the other hand, radiation, for example, X-rays are applied to a subject such as a human body, and radiation image information of the subject is directly recorded on a photographic film. A visible image is obtained by developing the photographic film, and a medical diagnosis or the like is performed using the visible image.
[0005]
The radiographic image record carrier such as the stimulable phosphor sheet or the photographic film is usually loaded in the imaging apparatus in a state of being accommodated one by one in the cassette, and the radiographic image record carrier is irradiated with X-rays through the cassette. ing.
[0006]
As this type of cassette, for example, a cassette disclosed in Japanese Patent Publication No. 6-90424 is known. As shown in FIG. 13, the cassette includes a housing 2 that accommodates the radiation image recording carrier 1, a lid 3 that is attached to a part of the housing 2 so as to be freely opened and closed, and a remaining portion of the housing 2. A light-shielding plate 4 that is disposed in a portion and holds the radiographic image record carrier 1 together with the lid 3 in a light-tight manner.
[0007]
[Problems to be solved by the invention]
By the way, if dust or the like is present inside the cassette, the dust or the like may adhere to the radiographic image record carrier 1, and a defective image may be recorded on the radiographic image record carrier 1 due to radiation irradiation. . For this reason, it is necessary to frequently clean the inside of the cassette, particularly when a high quality image is required, such as a mammo cassette.
[0008]
However, in the above cassette, the light shielding plate 4 is usually fixed to the housing 2 via a plurality of screws, and the removal work of the light shielding plate 4 is considerably complicated. As a result, it has been pointed out that it takes a considerable amount of time to clean the inside of the cassette.
[0009]
The present invention solves this type of problem, and provides a radiation cassette capable of efficiently cleaning the inside of a radiation cassette in which a lid is attached to a part of the casing so as to be freely opened and closed with a simple operation. The purpose is to provide.
[0010]
[Means for Solving the Problems]
Radiation cassette tape according to the present invention includes a housing which accommodates a radiation image record carrier, and a lid member which is openably mounted to a portion of the housing, while being disposed in the remaining portion of the housing, A light-shielding plate provided at one end so that the lid is swingable; a support means for detachably or swingably supporting the other end of the light-shielding plate; and one end side of the light-shielding plate And a locking means that can be slid by external force to release the light shielding plate, and one end side of the lid is fixed to the housing and slid by external force. and a releasable lid locking means fixing the lid body Te, and the sliding direction of the locking means, the sliding direction of said lid locking means, you being a direction crossing.
[0011]
For this reason, the light shielding plate can be attached to and detached from or swung with respect to the housing simply by moving the locking means forward and backward, and the inside of the housing can be cleaned quickly and easily. Therefore, the opening / closing operation of the light shielding plate is performed more efficiently than the conventional screwing method.
[0012]
Also provided is a lock release means that engages with the lock means and can release the fixation of the light shielding plate by the lock means. Thereby, especially when it is necessary to perform frequent cleaning, such as a mammo cassette, the light shielding plate can be released simply by operating the unlocking means, and the light shielding plate can be fixed and released more easily. And is carried out quickly.
[0013]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is an exploded perspective view of the radiation cassette 10 according to the first embodiment of the present invention, and FIG. 2 is a perspective view of the radiation cassette 10.
[0014]
The radiation cassette 10 includes a housing 14 that houses a stimulable phosphor sheet (radiation image record carrier) 12, a lid 16 that is attached to a part of the housing 14 so as to be openable and closable, and the remainder of the housing 14 A light-shielding plate 18 that is disposed in the portion and has the lid 16 swingably provided at one end 18a, and a support means that detachably supports the other-end 18b side of the light-shielding plate 18 with respect to the housing 14. 20 and a locking means 22 that fixes one end 18a side of the light shielding plate 18 with respect to the housing 14 and can be moved forward and backward by an external force to release the light shielding plate 18 from being fixed.
[0015]
The housing 14 extends along the bottom wall 24, end wall portions 26 a and 26 b provided on the upstream side and the downstream side in the insertion direction (arrow A direction) of the stimulable phosphor sheet 12, and the insertion direction. Side wall portions 28a and 28b. An opening 30 for inserting and removing the stimulable phosphor sheet 12 is formed in the end wall portion 26a, and a lid locking means 46 to be described later is released on both sides of the opening 30. The pressing pin insertion holes 32a and 32b are formed through the end wall portion 26a.
[0016]
The light shielding plate 18 closes the upper portion of the housing 14 and is detachably attached to the housing 14 via a hinge 33. On the back surface 18c of the light shielding plate 18, upper hooks 34a and 34b are formed that are located at both edges in the width direction and bulge downward. The casing 14 is provided with lower hooks 36a and 36b that can be engaged with the upper hooks 34a and 34b.
[0017]
As shown in FIGS. 3 and 4, the lower hooks 36a and 36b are disposed between the inside of the side wall portions 28a and 28b of the housing 14 and the guide plates 38a and 38b, and project inwardly. The bulging parts 40a and 40b are provided. The lower hooks 36a and 36b are provided with oval through holes 41a and 41b that are elongated in the direction of the arrow A, and first stoppers 42a and 42b are inserted into the through holes 41a and 41b so that the first stoppers are inserted. When the tools 42a and 42b are screwed into the housing 14, the lower hooks 36a and 36b are supported so as to advance and retract by a predetermined distance in the direction of arrow A.
[0018]
One end of the springs 44a and 44b engages with the lower hooks 36a and 36b, and the other end side of the springs 44a and 44b is a hole 50a formed in the sliders 48a and 48b constituting the lid locking means 46. , 50b. The sliders 48a and 48b are formed with oval through holes 52a and 52b elongated in the direction of the arrow A, and the second stoppers 54a and 54b inserted into the through holes 52a and 52b are screwed into the housing 14. Thus, the sliders 48a and 48b are supported in the direction of the arrow A so as to advance and retract by a predetermined distance.
[0019]
Cylindrical pin contact portions 56a and 56b that can be inserted into the holes 32a and 32b of the housing 14 are provided at the tips of the sliders 48a and 48b, and rearward (arrow A1) from the pin contact portions 56a and 56b. The lower lock claws 58a and 58b are bulged and formed at a predetermined distance in the direction). At positions separated rearward from the lower lock claws 58a and 58b of the sliders 48a and 48b, the pressing portions 60a and 60b are formed to bulge and rise upward.
[0020]
The light shielding plate 18 is provided with an unlocking means 62 that is positioned on the one end 18a side and can be fixed by the locking means 22 with one touch. As shown in FIGS. 1 and 3, the unlocking means 62 includes unlocking knobs 66a and 66b biased rearward (in the direction of arrow A1) via springs 64a and 64b. The light-shielding plate 18 is disposed on both sides of the one end 18a side so as to freely advance and retract. Lever 68a, 68b is provided in the lower part of knob 66a, 66b, and the front-end | tip of said lever 68a, 68b is engageable with the bulging part 40a, 40b which protrudes inward of lower hook 36a, 36b, respectively.
[0021]
The light shielding plate 18 and the housing 14 are provided with positioning means 70 for positioning and holding the light shielding plate 18 with respect to the housing 14. As shown in FIG. 1, the positioning means 70 is provided inside the notches 72 a and 72 b provided on both sides of the light shielding plate 18 and the side walls 28 a and 28 b of the housing 14, and the notches 72 a and 72 b are provided. And stopper portions 74a and 74b that can be freely inserted.
[0022]
A lid 16 is integrally provided at one end 18 a of the light shielding plate 18 via a hinge 76, and the lid 16 is attached to the housing 14 so as to be opened and closed. The lid 16 is formed with a barcode reading window 78. On both sides of the window 78, unlocking knobs 80a and 80b constituting the lid locking means 46 are provided via springs 82a and 82b. It is pressed forward (arrow A2 direction).
[0023]
As shown in FIG. 3, unlocking plates 84a and 84b inserted between the pressing portions 60a and 60b of the sliders 48a and 48b and the lower lock claws 58a and 58b are provided below the knobs 80a and 80b. . On the back surface 16a of the lid body 16, upper lock claws 86a and 86b that can be engaged with the lower lock claws 58a and 58b of the sliders 48a and 48b are formed.
[0024]
The operation of the radiation cassette 10 configured as described above will be described below.
[0025]
When inserting the stimulable phosphor sheet 12 before recording radiographic image information into the radiation cassette 10, the operator directly controls the knobs 80 a and 80 b constituting the lid locking means 46 provided on the lid 16. The lid lock means 46 is released by operating or inserting a lock release pin 90 into the holes 32a and 32b of the housing 14 as shown in FIG. 4 within a loading device (not shown).
[0026]
Specifically, when the knobs 80a and 80b are pressed in the direction of the arrow A1 in FIG. 3, the lock release plates 84a and 84b integrally with the knobs 80a and 80b resist the elastic force of the springs 82a and 82b. To move in the direction of arrow A1. For this reason, the lock release plates 84a and 84b press the pressing portions 60a and 60b constituting the sliders 48a and 48b in the direction of the arrow A1, and the sliders 48a and 48b move in the direction of the arrow A1 against the springs 44a and 44b. . Accordingly, the lower lock claws 58a and 58b are detached from the upper lock claws 86a and 86b, the lid lock means 46 is released, and the lid 16 can be opened with respect to the housing 14.
[0027]
On the other hand, in the automatic unlocking by the unlocking pin 90, as shown in FIG. 4, the unlocking pin 90 is inserted into the holes 32a and 32b and the pin contact portions 56a and 56b of the sliders 48a and 48b are moved in the direction of the arrow A1. Press on. Therefore, the sliders 48a and 48b move in the direction of the arrow A1 against the springs 44a and 44b, and the lower lock claws 58a and 58b are detached from the upper lock claws 86a and 86b so that the lid body 16 can be opened. It becomes.
[0028]
Next, when the lid 16 is opened with the hinge 76 as a fulcrum with respect to the housing 14, the opening 30 of the housing 14 is opened, and the stimulable phosphor sheet 12 is opened through the opening 30. 14 is inserted. Therefore, when the lid body 16 is pressed toward the housing 14, the upper side lock claws 86a and 86b provided on the back surface 16a of the lid body 16 become the lower side lock claws 58a provided on the sliders 48a and 48b. , 58b, and the lower lock claws 58a, 58b are pressed in the direction of the arrow A1.
[0029]
As a result, the sliders 48a and 48b once move in the arrow A1 direction, then move in the arrow A2 direction via the springs 44a and 44b, and the lower lock claws 58a and 58b engage with the upper lock claws 86a and 86b. The lid 16 is fixed to the housing 14.
[0030]
The radiation cassette 10 in which the stimulable phosphor sheet 12 is accommodated is loaded into an image recording apparatus (not shown), irradiated with radiation including radiation image information of a subject (not shown) from the bottom wall portion 24 side of the radiation cassette 10, This radiation image information is recorded on the stimulable phosphor sheet 12.
[0031]
By the way, when the light shielding plate 18 and the lid body 16 are removed from the housing 14 and the inside of the housing 14 is cleaned, first, the knobs 80a and 80b provided on the lid body 16 are springs 82a and 82b. Against this, it is moved in the direction of the arrow A1, and the lid locking means 46 is released (see FIG. 5). Next, as shown in FIG. 3, when the knobs 66a and 66b provided on the light shielding plate 18 are pressed in the direction of the arrow A2 against the springs 64a and 64b, the knobs 66a and 66b are integrally fixed. The levers 68a and 68b that have been moved also move in the direction of the arrow A2.
[0032]
Therefore, the levers 68a and 68b abut against the bulging portions 40a and 40b provided on the lower hooks 36a and 36b constituting the locking means 22, and the lower hooks are interposed via the bulging portions 40a and 40b. 36a and 36b are moved in the arrow A2 direction against the springs 44a and 44b. Accordingly, the lower hooks 36a and 36b are detached from the upper hooks 34a and 34b provided on the light shielding plate 18, and the locked state of the light shielding plate 18 by the locking means 22 is released (see FIG. 6). Therefore, if the other end 18 b of the light shielding plate 18 is pulled out from the hinge 33, the light shielding plate 18 and the lid body 16 are integrally removed from the housing 14.
[0033]
On the other hand, when attaching the light shielding plate 18 and the lid 16 to the housing 14, the other end 18 b of the light shielding plate 18 is pushed into the hinge 33, and then the one end 18 a side of the light shielding plate 18 is placed on the housing 14 side. Press on. For this reason, the upper hooks 34a and 34b provided on the back surface 18c of the light shielding plate 18 abut against the lower hooks 36a and 36b, and the lower hooks 36a and 36b are temporarily in the direction of the arrow A2 against the springs 44a and 44b. The lower hooks 36a and 36b move in the direction of arrow A1 and engage with the upper hooks 34a and 34b. Further, by pressing the lid 16 toward the housing 14, the upper lock claws 86 a and 86 b and the lower lock claws 58 a and 58 b are engaged, and the lid 16 is fixed to the housing 14.
[0034]
Thus, in the first embodiment, the light shielding plate 18 is supported by the housing 14 with the other end 18b inserted into the hinge 33, and locked to the one end 18a side of the light shielding plate 18 and the housing 14. Means 22 is provided, and the lock means 22 can be unlocked with one touch only by operating the unlock means 62. For this reason, the effect that the operation | work which removes the light-shielding plate 18 from the housing | casing 14 is rapidly and easily performed compared with the conventional structure by a screwing system is acquired.
[0035]
In addition, the light shielding plate 18 can be fixed to the housing 14 via the locking means 22 simply by pressing the light shielding plate 18 toward the housing 14. Thereby, the attaching / detaching operation of the light shielding plate 18 is performed quickly, and particularly when the inside of the radiation cassette 10 needs to be frequently cleaned like a mammo cassette, the cleaning operation of the radiation cassette 10 is effectively simplified. There is an advantage of doing.
[0036]
In the first embodiment, positioning means 70 is provided on the housing 14 and the light shielding plate 18. The positioning means 70 includes stopper portions 74 a and 74 b formed on the housing 14 and notches 72 a and 72 b provided on the light shielding plate 18, and the light shielding plate 18 is fixed to the housing 14. The stopper portions 74a and 74b are fitted into the notches 72a and 72b. As a result, the light shielding plate 18 can be accurately and firmly positioned and held with respect to the housing 14.
[0037]
In the first embodiment, the other end 18b of the light shielding plate 18 is detachable from the hinge 33. However, the other end 18b is formed integrally with the hinge 33 or another hinge structure is used. It may be configured to be swingable with respect to the housing 14.
[0038]
FIG. 7 is an exploded perspective view of the radiation cassette 100 according to the second embodiment of the present invention. In addition, the same referential mark is attached | subjected to the component same as the radiation cassette 10 which concerns on 1st Embodiment, and the detailed description is abbreviate | omitted. The same applies to the radiation cassettes 120, 150, and 170 according to the third to fifth embodiments described below.
[0039]
In this radiation cassette 100, the lock release means 62 is not used, and the lower hooks 36a and 36b constituting the lock means 22 are moved directly in the direction of the arrow A2 by a pin or the like (not shown), and light shielding by the lock means 22 is performed. The plate 18 is configured to release the locked state.
[0040]
Therefore, unlike the mammo cassette, the radiation cassette 100 of the second embodiment can be used effectively when it is not necessary to perform the cleaning work very frequently. Thereby, the radiation cassette 100 according to the second embodiment has an effect that the configuration is effectively simplified as compared with the radiation cassette 10 according to the first embodiment.
[0041]
FIG. 8 is an exploded perspective view of the radiation cassette 120 according to the third embodiment of the present invention, and FIG. 9 is a perspective view of the radiation cassette 120.
[0042]
The radiation cassette 120 includes a light shielding plate 122 that can swing with respect to the housing 14, and the other end 122 b of the light shielding plate 122 is fixed to a hinge 124. On the one end 122 a side of the light shielding plate 122, there is provided a locking means 126 that can fix the light shielding plate 122 to the housing 14 and can move forward and backward by an external force to release the light shielding plate 122.
[0043]
The lock means 126 includes recesses 128a and 128b formed on both side portions of the housing 14, and lock members 130a and 130b that can be moved forward and backward in the direction of arrow B and can be engaged and disengaged with the recesses 128a and 128b. The lock members 130a and 130b are positioned on the back surface 122c side of the light shielding plate 122 and are urged toward the side wall portions 28a and 28b of the housing 14 via the springs 132a and 132b.
[0044]
Slide knobs 136a and 136b constituting the lock release means 134 are fixed to the lock members 130a and 130b, and the slide knobs 136a and 136b are disposed on the surface side of the light shielding plate 122. The lid locking means 138 for fixing the lid 16 to the casing 14 includes support members 140a and 140b that are fixed to the casing 14 and lock the ends of the springs 44a and 44b.
[0045]
In the radiation cassette 120 configured as described above, when the light shielding plate 122 is opened with respect to the housing 14, the unlocking unit 134 is configured in a state in which the lid 16 is unlocked by the lid locking unit 138. The slide knobs 136a and 136b are pressed in directions approaching each other. For this reason, the lock members 130a and 130b provided integrally with the slide knobs 136a and 136b are detached from the recesses 128a and 128b formed in the side wall portions 28a and 28b constituting the housing 14. Thereby, the locked state of the light shielding plate 122 by the locking means 126 is released, and the light shielding plate 122 can swing about the hinge 124 as a fulcrum.
[0046]
Next, after the inside of the housing 14 is cleaned, the light shielding plate 122 is moved to the housing 14 side. At that time, after the locking members 130a and 130b constituting the locking means 126 are in contact with the side wall portions 28a and 28b of the housing 14 and displaced in the directions close to each other, the locking members 130a and 130b protrude toward the concave portions 128a and 128b. It is fixed to the housing 14. Further, when the lid body 16 is closed to the housing 14 side, the lid body 16 is locked to the housing 14 via the lid body locking means 138.
[0047]
Note that when the light shielding plate 122 is closed to the housing 14 side, the operator forcibly holds the slide knobs 136a and 136b constituting the unlocking means 134 in a direction close to each other, and the light shielding plate 122 is attached to the housing 14 14 and releasing the pressing force to the slide knobs 136a and 136b, the locking means 126 may perform the locking operation.
[0048]
In the radiation cassette 120 according to the third embodiment configured as described above, similarly to the radiation cassette 10 according to the first embodiment, the lock means 126 can be unlocked with one touch only by operating the lock release means 134. Done. Therefore, the light shielding plate 122 can be quickly swung with respect to the housing 14, and an effect that the cleaning operation of the radiation cassette 120 and the like can be performed efficiently and easily can be obtained.
[0049]
FIG. 10 is an exploded perspective view of the radiation cassette 150 according to the fourth embodiment of the present invention.
[0050]
The radiation cassette 150 is configured in substantially the same manner as the radiation cassette 120 according to the third embodiment, and the light shielding plate 152 is swingably supported by the housing 14 via the hinge 154 and the light shielding plate. 152 and the housing 14 are provided with locking means 126. The light shielding plate 152 is not provided with a lock release means, and lock release holes 156a and 156b for pressing the lock members 130a and 130b inward are formed in the side walls 28a and 28b constituting the housing 14, respectively. The lock release pins 158a and 158b can be inserted into the lock release holes 156a and 156b. The lid body 16 that is swingably attached to the light shielding plate 152 is configured to be fixed to the housing 14 via the lid body locking means 138.
[0051]
In the radiation cassette 150 configured as described above, the light shielding plate 152 is not provided with the lock release means, and an advantage that the configuration is effectively simplified can be obtained. When the light shielding plate 152 is swung from the housing 14, for example, lock release pins 158a and 158b are inserted into the lock release holes 156a and 156b from the outside, and the lock release pins 158a and 158b lock the locking means. The lock members 130a and 130b constituting 126 are pressed in the directions approaching each other.
[0052]
Therefore, the lock members 130a and 130b are detached from the recesses 128a and 128b of the side wall portions 28a and 28b, and the lock state of the light shielding plate 152 by the lock unit 126 is released. Therefore, the light shielding plate 152 is swung with the hinge 154 as a fulcrum integrally with the lid body 16 which is previously unlocked by the lid body locking means 138, and the cleaning operation in the housing 14 is performed. become.
[0053]
Therefore, in the fourth embodiment, the same effects as those of the first to third embodiments can be obtained, for example, the operation of attaching and detaching the light shielding plate 152 to the housing 14 can be performed easily and quickly.
[0054]
FIG. 11 is a perspective view of a main part of a radiation cassette 170 according to the fifth embodiment of the present invention, and FIG. 12 is a cross-sectional view of the main part of the radiation cassette 170.
[0055]
The radiation cassette 170 includes a light shielding plate 172 that can swing with respect to the housing 14. The light shielding plate 172 is fixed to the housing 14 on the front end of the light shielding plate 172, and an external force is applied. Is provided with locking means 174 that can be advanced and retracted to release the light shielding plate 172 from being fixed.
[0056]
The lock means 174 includes fixed hooks 176a and 176b fixed to both side portions of the casing 14, movable hooks 178a and 178b which can be moved forward and backward in the direction of arrow A and can be freely attached to and detached from the fixed hooks 176a and 176b, and a light shielding plate. 172, and a lock releasing means 180 that can move forward and backward in the direction of arrow A integrally with the movable hooks 178a and 178b.
[0057]
The movable hooks 178a and 178b are located on the back side of the light shielding plate 172 and are urged toward the fixed hooks 176a and 176b (in the direction of arrow A2) via the springs 182a and 182b. Slide knobs 184a and 184b constituting the lock release means 180 are fixed to the movable hooks 178a and 178b, and the slide knobs 184a and 184b are disposed on the surface side of the light shielding plate 172.
[0058]
In the radiation cassette 170 configured as described above, when the light shielding plate 172 is opened with respect to the housing 14, the lock release unit 180 is configured in a state in which the cover 16 is unlocked by the cover lock unit 46. The slide knobs 184a and 184b are pressed in the arrow A1 direction against the springs 182a and 182b. Therefore, the movable hooks 178a and 178b provided integrally with the slide knobs 184a and 184b are detached from the fixed hooks 176a and 176b fixed to the housing 14. Thereby, the locked state of the light shielding plate 172 by the locking means 174 is released.
[0059]
Next, after the inside of the housing 14 is cleaned, the light shielding plate 172 is closed to the housing 14 side. At this time, the movable hooks 178a and 178b constituting the locking means 174 abut against the fixed hooks 176a and 176b and are temporarily displaced in the direction of the arrow A1, and then protrude in the direction of the arrow A2 to engage with the fixed hooks 176a and 176b. . Accordingly, the light shielding plate 172 is fixed to the housing 14, and the lid body 16 is closed to the housing 14 side, whereby the lid body 16 is attached to the housing 14 via the lid body locking means 46. Locked.
[0060]
As described above, in the fifth embodiment, the light shielding plate 172 can be quickly attached to and detached from the housing 14, and the effect that the cleaning operation of the radiation cassette 170 and the like can be performed efficiently and easily is obtained. .
[0061]
【The invention's effect】
In the radiation cassette according to the present invention, a lock is provided on one end of the light shielding plate which is provided so as to be swingable and is supported detachably or swingably with respect to the housing. Means are provided, and the operation of releasing the fixing of the light shielding plate is performed easily and in a short time. As a result, the cleaning operation and the like in the housing are easily and efficiently performed, and the maintenance of the radiation cassette is effectively simplified.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of a radiation cassette according to a first embodiment of the present invention.
FIG. 2 is a perspective view of the radiation cassette.
FIG. 3 is a perspective explanatory view of a lock means constituting the radiation cassette.
FIG. 4 is a longitudinal sectional view of the locking means.
FIG. 5 is an operation explanatory diagram of lid locking means constituting the radiation cassette.
FIG. 6 is an operation explanatory diagram when the locking means is released.
FIG. 7 is an exploded perspective view of a radiation cassette according to a second embodiment of the present invention.
FIG. 8 is an exploded perspective view of a radiation cassette according to a third embodiment of the present invention.
FIG. 9 is a perspective view of the radiation cassette.
FIG. 10 is an exploded perspective view of a radiation cassette according to a fourth embodiment of the present invention.
FIG. 11 is a perspective explanatory view of main parts of a radiation cassette according to a fifth embodiment of the present invention.
FIG. 12 is a cross-sectional view of a main part of the radiation cassette.
FIG. 13 is an explanatory view of a longitudinal section of a cassette according to the prior art.
[Explanation of symbols]
10, 100, 120, 150, 170 ... radiation cassette 12 ... stimulable phosphor sheet 14 ... casing 16 ... lid 18, 122, 152, 172 ... light shielding plate 20 ... support means 22, 126, 174 ... lock means 34a 34b, upper hooks 36a, 36b, lower hooks 40a, 40b, bulging portions 44a, 44b, 64a, 64b, 82a, 82b, 132a, 132b, 182a, 182b, springs 46, 138, lid locking means 48a, 48b ... Sliders 58a, 58b ... Lower locking claws 60a, 60b ... Pressing parts 62, 134, 180 ... Unlocking means 66a, 66b, 80a, 80b ... Knobs 68a, 68b ... Lever 70 ... Positioning means 86a, 86b ... Upper lock Claws 130a, 130b ... Lock members 136a, 136b, 184a, 184b Slide knob 156a, 156b ... unlock holes 176a, 176b ... fixed hooks 178a, 178b ... movable hook

Claims (2)

A housing for accommodating the radiation image record carrier;
A lid attached to a part of the housing so as to be freely opened and closed;
A light-shielding plate disposed on the remaining portion of the housing and provided with the lid at the one end in a swingable manner;
Support means for supporting the other end of the light-shielding plate in a detachable or swingable manner with respect to the housing;
A locking means for fixing one end side of the light shielding plate to the casing, and capable of releasing the light shielding plate by sliding with an external force;
A lid locking means capable of fixing one end of the lid to the casing and slidable by an external force to release the lid;
Equipped with a,
And sliding direction of the locking means, the sliding direction of said lid locking means, radiation cassette according to claim direction der Rukoto crossing.   The radiation cassette according to claim 1, further comprising: a lock release unit that engages with the lock unit and can release the fixation of the light shielding plate by the lock unit.

Images